A long hinged rule folds itself into squares, zigzags, loops and spirals, one joint after another, and calmly unfolds again.
A long hinged rule folds itself into squares, zigzags, loops and spirals, one joint after another, and calmly unfolds again.
In the app you can adjust the colours, segments and folding speed. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.
Use it on your Mac
- Get SCRNSVRS free from the Mac App Store.
- Select Folding Rule in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Preview free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Folding Rule FAQ
How do I set Folding Rule as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Folding Rule in the library and click Set as Screensaver. macOS starts it whenever your Mac is idle, exactly like a built-in screensaver.
Can I use Folding Rule as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Folding Rule plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Folding Rule free?
Folding Rule is included in SCRNSVRS Unlimited. It's free for your first 7 days; after that Unlimited is $1.99/month or $9.99/year (€1.99/month or €9.99/year) for every screensaver, including new ones. It can also come up in Free this month, when 25 premium screensavers are free for everyone.
Is Folding Rule a video loop?
No. Folding Rule is rendered live on your Mac with Metal, so it never repeats and stays sharp on any display size. The clip on this page is a screen recording of the real thing.
Will Folding Rule slow down my Mac or drain the battery?
No. SCRNSVRS drops to 30 fps on battery and stops rendering when the wallpaper is covered by a full-screen app, so Folding Rule costs next to nothing in everyday use.
Which Macs does Folding Rule run on?
Folding Rule needs macOS Tahoe 26 or later.
